A puff of purple smoke appears in front of you, knocking enemies over. Each upgrade adds another puff in front of the previous ones, up to a total of 7. A common misunderstanding is that this spell has much less range than most other splash attacks; however, the range is actually longer than what is shown, and can best be described as adding another puff at the end of the last visible one. The spell also triggers a special sound when used where Ninja vocally speaks with Chinese-like chimes playing afterwards. This attack is very rapidly damaging. It's actually so rapid that Ninja kills bosses faster than Red Knight, and he also has smaller hitboxes, which helps him hit slim targets like Antlion more times than normal characters would such as Fire Demon, Brute/Snakey, etc.

Because of this, even though the speed is less than that of those characters, the mechanics make it more economical because more shorter range/smaller hitboxes = hits per cast = more damage (as well as more XP) per cast = higher DPS = more effective boss slaying (as well as farming because of the XP but not as good for expectations). Long story short, sometimes less is more. Sort of like a well made guitar solo, it doesn't need to be as fast as possible as long as there's some speed and the artist puts some more thought into it. The difference is significant enough to make a visible impact on the results.

While attacking a ninja he will sometimes fall over, only for the player to find the ninja substituted himself with a log, and the real one reappears on the other side of the player, attempting to attack him. This can easily be dodged by moving around once they drop the decoy, and it can be blocked with your shield.

The log transformation may be a reference to many ninja/martial arts-based movies, such as Kung Pow or Karate Kid, where logs are often used, symbolically or physically, to represent strength and there chackra.

The reason ninjas are on a pirate ship is perhaps a nod to the old comedic conflict about "Pirates vs. Ninjas".

The Ninja appears to be half pirate and half ninja. His attire matches that of a ninja and his weapon is a ninja sai, while his headband dons the Jolly Roger and he uses a mug of ale for a shield.

Ninja's white irises that appear in his portrait do not appear in game.

This character is also known as "Ninjer," and/or Sciomancer, which means "Shadow Mage."

Ninja is a A Rank character (A-).

His picture on the player select screen shows him shushing the player.

As opposed to popular belief, Ninja does nothave faster melee speed.

Ninja's arrows are Kunai.

The Ninja's starting weapon, the Sai, gives one of the greatest agility boosts in the game, +6 Agility. This is likely a reference to ninjas having fast and quick movements, this may also be referenced by fact that the NPC Ninjas' projectile attack flies faster than normal projectiles.